OK first off, I guess I don't know what I'm doing thought it would be easier than it is. I bought a 1987 Boat with a 1986 Mercury 3-cylinder 2 stroke with trim and tilt, the engine is hurt and not going to rebuild. I found a 2003 Mercury 4 stroke EFI and would like to put on smartcraft, Called Mercury and they said this engine will work with Smartcraft but wouldn't supply me with any information on the items I needed said see dealer. Well, I went to the dealer, and I guess I wasn't clear enough that I have no gauges at all and would like the smart craft well I still couldn't get the information The boat has no gauge package on it at all nothing, does anyone know what I need to purchase for the Smartcraft gauges also this engine has an 8-pin connector. Than k you